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Finding the Fourth Proportional to 376,391.51, 519,293.78 and 240,505.00

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Solution

The fourth proportional to 376,391.51, 519,293.78 and 240,505.00 is: 331,816.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,391.51 : 519,293.78 = 240,505.00 : x
  2. Step 2: Convert to fraction form
    376,391.51/519,293.78 = 240,505.00/x
  3. Step 3: Cross multiply
    376,391.51x = 519,293.78 × 240,505.00
  4. Step 4: Simplify right side
    376,391.51x = 124,892,750,312.88
  5. Step 5: Solve for x
    x = 124,892,750,312.88/376,391.51
  6. Step 6: Final answer
    x = 331,816.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.